Thick-lipped grey Mullet

Thick-lipped grey Mullet

Mullet are a fish which lives in calm, still water. They are therefore often found in harbours, marinas, estuaries and sheltered natural coves and bays. When the sea is still they can often be seen slowly swimming just below the surface of the water in small groups. Mullet are highly tolerant of brackish and stagnant water and will swim along rivers until they are very far inland.

Mullet are found all around the coasts of Britain and Ireland especially southern Scotland and the English Channel.

Zoo Diet

At Living Coasts, the mullet are fed 3 times a day. As they are growing it’s a mix of big krill, pacifica krill and mysis shrimp.

Wild Diet

They feed primarily on organic matter which they take from the seabed. They will scoop seabed sediment and mud into their mouths and consume the small invertebrates and tiny benthic crustaceans and filter out the inedible items through their gills. They will also eat seaweed and algae, and other forms of marine vegetation.


Mullet are present usually in schools. The species is catadromous, which means that the juveniles migrate inshore and then move back to the sea to spawn.  


Spawning takes place in the middle of winter and continues into spring, with the small immature mullet spending the early part of their lives living in inshore waters.


Mullet are a slow growing, long living and late maturing fish, which means they are vulnerable to being overfished.


As a fairly important commercial fish species, regulations are in place to control the size of thicklip mullets which can be harvested and, as such, fish under 35 centimetres in length may not be taken.

Thick-lipped grey Mullet


  • Latin Name: Chelon labrosus
  • Conservation Status: Least Concern
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